Sano has always been a guy that people accuse of having not ever signed all of his own autographs and having people "help" him. I think it's pretty clear that he doesn't sign them all himself, unless that's a completely different person's autograph (not that you can infer a name anymore simply by looking at modern autoigraphs).

Nice hits though.

"I'm an acquired taste; if you don't like me, you should acquire some taste!"-- Stephen Colbert